Bg 4000 tonearm behavior

6 replies
BU
Offline
bulldog123
Bronze
Posted November 23, 2022 at 06:26 GMT
#1641552
On an otherwise fully functional Bg 4000 5215  I am getting the following behaviors:-

1) when pressing the ^ button the tonearm does not stay up once the ^ button is released - it just drops as if the down button had been pressed.  Same behavior on < and > buttons - is this a keypad problem or should I be looking elsewhere?

2) from time to time the tone arm drops suddenly instead of the normal smooth drop that is expected. This is not a persistent problem.

Any thoughts and guidance greatly appreciated.
spassmaker
Offline
spassmaker
Bronze
Posted November 25, 2022 at 09:15 GMT
#1651004
Hi

Cold be a keypad problem, regarding to the SM the \/ button is normaly closed and the /\ button is normaly open.

So as there is a bad contact at the \/ button the tonearm will only stay up as long as you push any other button.

Cleaning the contacts is recommended, look here for further information:

https://beolover.blogspot.com/2017/10/beogram-4004-type-5526-keypad-contact.html

 

Kind regards

Christian
BU
Offline
bulldog123
Bronze
Posted November 26, 2022 at 17:32 GMT
#1651036
Thanks Spassmaker I will look at that.
HC
Offline
hcraig244
Silver
Posted November 27, 2022 at 12:00 GMT
#1651060
Just spotted this post justin, picked up a chest infection from soewhere ;¬(

The tone arm dropping sharply sounds like not enough dampoing, try winding the srew in very slightly.....and I would check out the down switch contact.....if its playing up the tone arm will dot stay up when ^ is pressed
BU
Offline
bulldog123
Bronze
Posted November 27, 2022 at 12:16 GMT
#1651061
Great Craig.  Thank you.  I hope you make a speedy recovery.
BU
Offline
bulldog123
Bronze
Posted November 27, 2022 at 21:09 GMT
#1651077
Fixed.  Thank you Craig and Christian.  The down switch contact terminal was oxidized and bent - after cleaning and straightening it works a charm.  Tone arm is dropping smoothly now.  Sweet sounds are emanating from the deck and its owner.  Thanks again.
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